Question

What is the slope-intercept form of the function described by this table?

x 1 2 3 4
y 2 7 12 17

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y = ? x + ?

Answer 1

y=5x-3

Explanation:

Answer 2

y=5x - 3 Because the difference in the y values are 5, the rise is 5. That is the TOP of the slope. The difference in the x values is 1, that is the run or the BOTTOM of the slope. So m = 5/1. Using y = mx + b 2 = 5(1) + b -3 = b Therefore, y = 5x -3